Forgive me if this article has been discussed already, (I did search for a thread on it)

The Jan/Feb 2009 issue of Photo Techniques" has an article that investigates if it is worthwhile to print VC paper by exposing the paper to both a high contrast and a low contrast filter versus exposing the paper to a single filter of the required contrast. In a nutshell the article says that in the case of people with a colour head split filter printing achieves nothing. i did a workshop with Howard Bond years ago and he said the same thing however I suspect that some people still use this technique. Of course using a different filter whilst burning is another matter entirely. Any thoughts on the article? Is split filter printing buried as an idea or do some people still use it?